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LP2981IM5X-3.0
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+42@@ -0,0 +1,42 @@+# LP2981IM5X-3.0++**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5++LP2981IM5X-3.0 from Texas Instruments, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | IN | power_in | Input supply pin; use a capacitor of 1µF or larger from this pin to ground, and the datasheet gives VIN of 2.5V to 16V for the new chip (2.1V to 16V for the legacy chip). |+| 2 | GND | power_in | Common ground (device substrate) that must be connected to the system ground with the input and output capacitor return paths kept close to it. |+| 3 | ON/OFF | input | LDO enable pin where driving high enables the device and driving low disables it, with the recommended enable voltage range of 0V to 16V for the new chip; tie to VIN if unused, and the high/low thresholds are listed in the Electrical Characteristics table, which is not in the provided pages. |+| 4 | NC | unconnected | Do not connect: reserved for factory post-packaging test and VOUT calibration, must be left floating, and must not be connected to any potential or to ground. |+| 5 | OUT | output | Regulator output; use a capacitor of 2.2µF or larger from this pin to ground, with nominal output capacitance above 1µF and effective capacitance at the pin above 1µF after 50% derating. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOT-23-5 |+| Category | Power Management (PMIC) |+| Pins | 5 |++## CAD (KiCad official)++- Symbol: `LP2981IM5X-3.0`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5 (KiCad packages3D, STEP)+- 3D model files: `lp2981im5x-3-0-etched.step` / `lp2981im5x-3-0-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp2981im5x-3-0.step` / `lp2981im5x-3-0.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lp2981-n) (43 pp, sha256 `4edc0bbf3eaa25d3`, retrieved 2026-10-08, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/lp2981im5x-3-0-datasheet.pdf)
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Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "lp2981im5x-3.0",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lp2981im5x-3-0.kicad_sym",+ "lp2981im5x-3-0.kicad_mod",+ "lp2981im5x-3-0.glb",+ "lp2981im5x-3-0.step",+ "lp2981im5x-3-0.lbr",+ "docs/hero.png",+ "docs/lp2981im5x-3-0-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "lp2981im5x-3-0-hero.glb",+ "lp2981im5x-3-0-hero.overlay.json"+ ],+ "component": {+ "mpn": "LP2981IM5X-3.0",+ "manufacturer": "Texas Instruments",+ "package": "SOT-23-5",+ "pin_count": 5,+ "category": "Power Management (PMIC)",+ "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lp2981-n",+ "parts": {+ "symbol": "lp2981im5x-3-0.kicad_sym",+ "footprint": "lp2981im5x-3-0.kicad_mod",+ "model_3d": "lp2981im5x-3-0-hero.glb",+ "model_3d_plain": "lp2981im5x-3-0.glb",+ "model_3d_step": "lp2981im5x-3-0-etched.step",+ "model_3d_step_plain": "lp2981im5x-3-0.step",+ "lbr": "lp2981im5x-3-0.lbr"+ },+ "distributor_links": {+ "lcsc": "C2859665",+ "digikey": "LP2981IM5X-3.0-ND",+ "mouser": "926-LP2981IM5X-30"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T01:40:15Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "LP2981IM5X-3.0-ND",+ "status": "found",+ "lifecycle": "Obsolete"+ },+ "mouser": {+ "pn": "926-LP2981IM5X-30",+ "status": "found",+ "lifecycle": "Obsolete"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "IN",+ "type": "power_in",+ "description": "Input supply pin; use a capacitor of 1µF or larger from this pin to ground, and the datasheet gives VIN of 2.5V to 16V for the new chip (2.1V to 16V for the legacy chip)."+ },+ {+ "number": "2",+ "name": "GND",+ "type": "power_in",+ "description": "Common ground (device substrate) that must be connected to the system ground with the input and output capacitor return paths kept close to it."+ },+ {+ "number": "3",+ "name": "ON/OFF",+ "type": "input",+ "description": "LDO enable pin where driving high enables the device and driving low disables it, with the recommended enable voltage range of 0V to 16V for the new chip; tie to VIN if unused, and the high/low thresholds are listed in the Electrical Characteristics table, which is not in the provided pages."+ },+ {+ "number": "4",+ "name": "NC",+ "type": "unconnected",+ "description": "Do not connect: reserved for factory post-packaging test and VOUT calibration, must be left floating, and must not be connected to any potential or to ground."+ },+ {+ "number": "5",+ "name": "OUT",+ "type": "output",+ "description": "Regulator output; use a capacitor of 2.2µF or larger from this pin to ground, with nominal output capacitance above 1µF and effective capacitance at the pin above 1µF after 50% derating."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-5-5",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: The datasheet lists pin 1 (IN) type as 'I' (input). I mapped it to KiCad power_in because it is the ; The ON/OFF high and low threshold voltages are in the Electrical Characteristics table, which is not; The pinout is from the DBV (SOT-23-5) pin table on page 3 of the datasheet. The MPN LP2981IM5X-3.0 i"+ ],+ "pages_sent": 11,+ "cost_usd": 0.0658,+ "at": "2026-10-08T01:40:00"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lp2981-n",+ "pages": 43,+ "sha256": "4edc0bbf3eaa25d3",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 5,+ "described": 5,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "lp2981im5x-3-0.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 2.8,+ 2.9,+ 1.55+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "lp2981im5x-3-0-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 2.8,+ 2.9,+ 1.55+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "d04e104f50b59e823302bb084c822506e3434f472039065e2b64f438001a94f8",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}